cold-rolled coil products
2 year ago
Cold-rolled steel sheets and strips are available in full-hard, half-hard, quarter-hard and skin-rolled conditions. Among these conditions, full-hard rolling reduces the thickness almost 50%, while the others are thicker. Skin-rolled steel stock is commonly used in subsequent cold-working methods where good ductility is required.
Other shapes can be cold-rolled if the cross-section is relatively uniform and the transverse dimension is relatively small. Cold-rolled shapes are processed in a series of shaping operations. This is usually done along the lines of sizing, breakdown, roughing, semi-roughing, semi-finishing and finishing.
Cold-rolled steel is used for a variety of products ranging from home appliances like refrigerators and washing machines to industrial machinery, architectural components, automobiles and a variety of construction-related products. Cold-rolled steel is an indispensable material in our modern society. Cold-rolled steel exhibits corrosion resistant properties. Smoother surface finishes are more corrosion resistant.
At GNEE STEEL, we supply a wide range of metals for a variety of applications. Our stock includes: mild steel, stainless steel, aluminum, tool steel, alloy steel, brass, bronze and copper.
We stock a wide range of shapes including: bars, tubes, sheets, plates and more. And we can cut metal to your exact specifications.
Cold rolled steel sheets and strips (JIS G 3141)
| Steel type symbol | Skin-pass symbol | Steel grade | Chemical composition, % | |||||
|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | ||||
| General purpose |
SPCC | S | TAP8 | ≤0.10 | ≤0.08 | 0.20 - 0.50 | ≤0.035 | ≤0.035 |
| 8 | TAK8 | ≤0.08 | ≤0.08 | 0.20 - 0.40 | ≤0.025 | ≤0.030 | ||
| 4 | TAK10 | 0.08 - 0.12 | ≤0.10 | 0.30 - 0.60 | ≤0.030 | ≤0.035 | ||
| 2 | TAK12 | 0.10 - 0.14 | ≤0.10 | 0.30 - 0.60 | ≤0.030 | ≤0.035 | ||
| 1 | TAK20(*1) | 0.18 - 0.23 | ≤0.10 | 0.30 - 0.60 | ≤0.025 | ≤0.030 | ||
| Drawing | SPCD | S | TAP8 | ≤0.10 | ≤0.08 | 0.20 - 0.50 | ≤0.035 | ≤0.035 |
| TAK8 | ≤0.08 | ≤0.08 | 0.20 - 0.40 | ≤0.025 | ≤0.030 | |||
| Deep drawing |
SPCE | S | TAK8 | ≤0.08 | ≤0.08 | 0.20 - 0.40 | ≤0.025 | ≤0.030 |
(*1)TAK20 cannot be applied to the SPCC-SB type specified in JIS G 3141.
JIS G 3141 standard
| Steel type symbol | Chemical composition, % | |||
|---|---|---|---|---|
| C | Mn | P | S | |
| SPCC | ≤0.15 | ≤0.60 | ≤0.100 | ≤0.035 |
| SPCD | ≤0.10 | ≤0.50 | ≤0.040 | ≤0.035 |
| SPCE | ≤0.08 | ≤0.45 | ≤0.030 | ≤0.030 |
SAE standard
| Steel type symbol | Chemical composition, % | |||
|---|---|---|---|---|
| C | Mn | P | S | |
| SAE1008 | ≤0.10 | 0.30 - 0.50 | ≤0.030 | ≤0.05 |
| SAE1010 | 0.08 - 0.13 | 0.30 - 0.60 | ≤0.030 | ≤0.05 |
| SAE1012 | 0.10 - 0.15 | 0.30 - 0.60 | ≤0.030 | ≤0.05 |
| SAE1020 | 0.18 - 0.23 | 0.30 - 0.60 | ≤0.030 | ≤0.05 |
Finish
| Finishing category | Symbol | Remarks |
|---|---|---|
| Bright | B | Strips smooth-finished by smooth finished rolls |
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